race results - no DNF or DQ

Hello all -- my first race in a while - 3/4/5 45+. In a bit of bad luck, I flatted my tire coming off the practice lap and into the grid. I ran for a new tire (to my car, not the pit), and got it on just as the whistle blew for the start. I was in last, last, last place. I crept up and blew the rear. I ran to the pit, left my bike and went for a another new tire in my car. Of course, the race was blown too. But I wanted some laps and got back in. I stayed out of the way and finished the race. I couldn't hear what the ref said at the end, but I crossed the finish.

Question is -- I got no results. No DQ, no DNF, nothing. Just curious as to why.